Then analyze the advantages and disadvantages of the traditional scheduling management method by comparison, such as CPM, PERT.

并对关键链项目管理方法与传统的项目管理方法，如关键路径法、计划评审技术的优势和劣势进行了比较。

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The network planning technique is a kind of method formulating plans and project management execution. Critical path method (CPM) and Program Evaluation and Review Technique (PERT) are commonly used.

网络计划技术是一种制定计划和对项目进行管理的方法，最常用的即是关键线路法CPM和计划评审技术PERT。

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The criteria for deter-mining critical path of networks with different characteristics is given. The reason for existing significant error of PERT/CPM algorithms is also revealed.

由此给出不同特征网络确定关键路线的准则， 并揭示PERT/CPM算法存在重大误差的原因。

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